Question

which of these best describes the bottleneck effect? a change in allele frequency due to a dramatic loss of population an increase in population a change in the location of a population

Explanation:

The bottleneck effect is a genetic phenomenon. When a population undergoes a drastic reduction (such as due to natural disasters, human activities like over - hunting), the allele frequencies in the surviving population can change significantly. This is because the small surviving group may not be a representative sample of the original large population in terms of genetic makeup. An increase in population is the opposite of what happens in the bottleneck effect. A change in the location of a population is more related to migration rather than the genetic changes associated with the bottleneck effect.

Answer:

a change in allele frequency due to a dramatic LOSS of population